This paper deals with the autoregression method to determine the logarithmic decrement and natural frequency of gas oscillations in a combustion chamber. The proposed approach to quantify the impact of combustion noise on the estimates of oscillation decrement is based on a linear model of the vibrating combustion phenomena. An application of the proposed approach for afterburner tests is presented as well.
Influence of Turbulent Combustion Noise on the Decrement Estimates of Gas Oscillations
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received August 29, 2017; final manuscript received May 3, 2018; published online June 7, 2018. Editor: Portonovo S. Ayyaswamy.
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Karmalita, V. (June 7, 2018). "Influence of Turbulent Combustion Noise on the Decrement Estimates of Gas Oscillations." ASME. J. Heat Transfer. October 2018; 140(10): 104502. https://doi.org/10.1115/1.4040255
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